The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 1991
Filed:
Mar. 29, 1989
Tetsuo Ikegame, Hachioji, JP;
Ichiro Ikari, Hachioji, JP;
Olympus Optical Co., Ltd., , JP;
Abstract
An apparatus for supporting an objective lens projecting a light beam upon an optical record disc having a data track recorded therein, movably in a focusing direction parallel to an optical axis of the objective lens as well as in a tracking direction perpendicular both to the optical axis and to the track in order to effect focusing and tracking servo controls, including four resilient wires arranged between a lens holder and a stationary base member, said resilient wires being not in parallel with each other. Two resilient wires provided nearer to the optical record disc are arranged such that extensions of these wires intersect with each other at a first point to make a first apex angle and the remaining two wires are arranged such that extensions of these wires intersect with each other at a second point to form a second apex angle, the first and second points being aligned in the focusing direction and the first apex angle being smaller than the second apex angle.